South Korea has called on North Korea to stop ballistic missile launches and instructed its military to maintain full readiness.
Yonhap news agency is cited as the source for the report of the launch.
The report confirms the missile landed in the East Sea, adding detail to the earlier launch report.
South Korea's military has confirmed the launch, adding an official source to the report.
Japan's Prime Minister's Office has confirmed the launch, describing it as a suspected ballistic missile.
South Korea's presidential office has formally called on the DPRK to stop the launches and instructed its military to maintain full readiness, while Japan has also expressed a protest.
